8. With everything together, the throttle body was placed on the engine. We found that we needed to remove about 1/8 inch of material from the intake flanges to get the body to sit further back and line up with the intake ports on the heads. Here, Nolen used a belt sander to ensure that the flanges were even. The manifold is designed with the flanges longer than stock so it can be used on different engines. With all the different manufacturers and engine sizes out there, JIMS wanted to make it so that with a little modification this throttle body would work with S&S; heads, H-D heads, and any other big-inch engine configurations.